DK334381A - Multi-stage branching device for high-frequency signals in the VHF and UHF area - Google Patents

Multi-stage branching device for high-frequency signals in the VHF and UHF area

Info

Publication number
DK334381A
DK334381A DK334381A DK334381A DK334381A DK 334381 A DK334381 A DK 334381A DK 334381 A DK334381 A DK 334381A DK 334381 A DK334381 A DK 334381A DK 334381 A DK334381 A DK 334381A
Authority
DK
Denmark
Prior art keywords
transformer
ground
secondary winding
directional couplers
vhf
Prior art date
Application number
DK334381A
Other languages
Danish (da)
Other versions
DK150874B (en
DK150874C (en
Inventor
W Wendel
Original Assignee
Hirschmann Radiotechnik
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hirschmann Radiotechnik filed Critical Hirschmann Radiotechnik
Publication of DK334381A publication Critical patent/DK334381A/en
Publication of DK150874B publication Critical patent/DK150874B/en
Application granted granted Critical
Publication of DK150874C publication Critical patent/DK150874C/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/46—Networks for connecting several sources or loads, working on different frequencies or frequency bands, to a common load or source
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/48—Networks for connecting several sources or loads, working on the same frequency or frequency band, to a common load or source

Landscapes

  • Details Of Television Systems (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Steroid Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Communication Cables (AREA)
  • Aerials With Secondary Devices (AREA)
  • Amplifiers (AREA)

Abstract

1. High-frequency multiple-distribution circuit arrangement for signals in the VHF-UHF range (5-860 MHz), particularly for use in community antenna systems, comprising at least two cascade-connected directional couplers for the broad-band direction-dependent coupling of a part of the signal energy conducted via a trunk line onto a distribution connection (AB), said directional couplers being of different design such that - coupled in alternating sequence - they consecutively transform the respective input impedance up and down, wherein each directional coupler exhibits two separate transformers (Ü1 , Ü2 ) whereby the primary winding of the first (current) transformer (Ü1 ) is between the input (E) and the output (A), that of the second (voltage) transformer (Ü2 ) being between input (E) or output (A) and ground, and the secondary winding of the current transformer (Ü1 ) is connected firstly to ground and secondly to the secondary winding of the voltage transformer (Ü2 ) whereby in the case of the step-down directional couplers (type A) the distribution connection (AB) is between the two secondary windings and the other end of the secondary winding of the voltage transformer (Ü2 ) is connected via an ohmic resistor (R1 ) to ground while in the case of the step-up directional couplers (type B) the resistor (R2 ) is connected between the connecting point of the secondary windings and ground and the other end of the secondary winding of the voltage transformer (Ü2 ) forms the distribution connection (AB).
DK334381A 1980-07-29 1981-07-27 MULTI-STEP CLASSIFICATION DEVICE FOR HIGH-FREQUENCY SIGNALS DK150874C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3028683 1980-07-29
DE3028683A DE3028683C2 (en) 1980-07-29 1980-07-29 Multiple branching device for high-frequency signals

Publications (3)

Publication Number Publication Date
DK334381A true DK334381A (en) 1982-01-30
DK150874B DK150874B (en) 1987-07-06
DK150874C DK150874C (en) 1988-01-25

Family

ID=6108348

Family Applications (1)

Application Number Title Priority Date Filing Date
DK334381A DK150874C (en) 1980-07-29 1981-07-27 MULTI-STEP CLASSIFICATION DEVICE FOR HIGH-FREQUENCY SIGNALS

Country Status (6)

Country Link
EP (1) EP0044909B1 (en)
AT (1) ATE5555T1 (en)
DE (1) DE3028683C2 (en)
DK (1) DK150874C (en)
ES (1) ES501728A0 (en)
FI (1) FI73550C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3821365A1 (en) * 1988-06-24 1989-12-28 Hirschmann Richard Gmbh Co ALIGNMENT COUPLERS
DE3916855C1 (en) * 1989-05-24 1990-05-10 Richard Hirschmann Gmbh & Co, 7300 Esslingen, De
DE4244107C2 (en) * 1992-12-24 1996-02-08 Hirschmann Richard Gmbh Co High frequency transmitter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1276146B (en) * 1963-03-04 1968-08-29 Siemens Ag Branch circuit for community antenna systems
DE2309151C3 (en) * 1973-02-23 1983-11-17 Siemens AG, 1000 Berlin und 8000 München Crossover
DE2343403A1 (en) * 1973-08-29 1975-03-13 Bosch Elektronik Gmbh MULTIPLE BROADBAND DIFFERENTIAL TRANSMITTER
DE2425722B2 (en) * 1974-05-28 1976-04-08 Siemens AG, 1000 Berlin und 8000 München BROADBAND DEVICE FOR HIGH-FREQUENCY SIGNALS OF THE VHF / UHF RANGE
DE2448737B1 (en) * 1974-10-12 1976-02-26 Bosch Gmbh Robert Broadband signal direction dependent transmitter - has windings through double axial hole in ferromagnetic core
DE2606449B2 (en) * 1976-02-18 1978-01-12 Feiten & Guilleaume Carlswerk AG, 5000 Köln DEVICE FOR DISCONNECTING HIGH FREQUENCY ENERGY
DE2703258C2 (en) * 1977-01-27 1983-03-24 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen Taps based on the directional coupler principle with different tubular core transformers

Also Published As

Publication number Publication date
EP0044909A2 (en) 1982-02-03
FI812289L (en) 1982-01-30
DE3028683C2 (en) 1984-02-16
DE3028683A1 (en) 1982-02-11
FI73550B (en) 1987-06-30
ES8202662A1 (en) 1982-02-16
DK150874B (en) 1987-07-06
FI73550C (en) 1987-10-09
EP0044909B1 (en) 1983-12-07
EP0044909A3 (en) 1982-04-07
ES501728A0 (en) 1982-02-16
ATE5555T1 (en) 1983-12-15
DK150874C (en) 1988-01-25

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Legal Events

Date Code Title Description
PBP Patent lapsed